Charles H. Spurgeon on Psalms 119:126

They have made void thy law. As if they would not only sin against the Law, but sin away the Law, not only withdraw themselves from the obedience of it, but drive St out of the world; they would make void and repeal the holy acts of God, that their own wicked acts might not be questioned; and lest the Law should have a power to punish them, they will deny it a power to rule them; that's the force of the simple word here used, as applied to highest transgressing against the Law of God. Joseph Caryl.

Ver. 126-127. Everything betters a saint. Not only ordinances, word, sacraments, holy society, but even sinners and their very sinning. Even these draw forth their graces into exercise, and put them upon godly, broken hearted mourning. A saint sails with every wind. As the wicked are hurt by the best things, so the godly are bettered by the worst. Because "they have made void thy law, therefore do I love thy commandments." Holiness is the more owned by the godly, the more the world despiseth it. The most eminent saints were those of Caesar's (Nero's) house (Philippians 4:22); they who kept God's name were they who lived where Satan's throne was (Revelation 2:13). Zeal for God grows the hotter by opposition; and thereby the godly most labour to give the glory of God reparation. William Jenkyn (1612-1685), in "The Morning Exercises".